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Wednesday, April 01, 2009

The Australian Transport Safety Bureau (ATSB) has issued a hefty, but fascinating, report on commercial jet aircraft runway excursions around the world. Here's an excerpt from the summary of 117-page report, which was just made available on the ATSB website:

Over the last decade there has been a noticeable reduction in the number of non-fatal and fatal accidents involving the worldwide commercial jet aircraft fleet. Despite this, runway excursions continue to remain prevalent, accounting for approximately a quarter of all incidents and accidents in air transport, and 96 per cent of all runway accidents. Runway excursions involve aircraft running off the end of the runway (overrun) or departing the side of the runway (veer-off).

A number of catastrophic runway excursions occurred across the world in 2007 and 2008, resulting in hundreds of fatalities and significant property damage in communities adjacent to the airport. This report, the first in a two-part series, provides a statistical picture of runway excursion accidents over a 10-year period how frequently they occur, why they occur, and what factors contributed to those accidents.

A search of the Ascend World Aircraft Accident Summary identified 141 runway excursion accidents involving the worldwide commercial jet aircraft fleet between 1998 and 2007. Those accidents resulted in 550 fatalities. Of those 141 accidents, 120 occurred during the landing phase of flight. An in-depth analysis of those 120 accidents was conducted in order to identify the types of flight crew technique and decision-related, flight crew performance-related, weather-related, and systems-related factors that contribute to runway excursions.